INDEX. 



889 



Infusoria. See Protozoans, 

 Rhizopods, Protophytes. 

 Infusorial beds, Tertiary, 493, 

 495, 514. 



dust-showers, 632.* 

 Ink-baa; of Calamarv. 440,* 



441. 

 Inoceramus, 433, 457, 458, 460, 

 475, 508. 



first of, 433. 



aviculoiles. 46S. 



Barabini, 469. 



biformis, 468. 



Brongniarti, 476. 



eapulus, 463. 



eoncentricus,476. 



confertim-annulatus, 46S. 



Crispii. 476. 



Cuvieri, 476. 



latus, 459, 476, 477. 



mytiloides, 4i6. 



obliquus, 433. 



problematicus, 457, 461,* 

 467,468,477,501,508. 



pseudo-mytiloides, 468. 



rectangulus, 433. 



striatus, 476. 



sublevis, 468. 



sulcatus, 476. 



umbonatus, 468. 

 Inorganic kingdom, 48. § 

 Insecteans, 121. § 

 Insects, 121, § 331, 351, 360, 

 483, 500, 592, 596, 608, 613. 



first of, 372 



culmination of, 598. 



most easily fossilized, 613. 



range of, in time, 388j* 



Carboniferous, 335, 351. 



Devonian, 273, 274. 



tracks of, in Triassic, 411,* 

 416. 

 Insectivores, 4S6, 506, 510, 519, 

 520. 



range of, in time, 589.* 

 Insular climate, 43. 

 Integripallial, 189.§ 

 Interior Continental region, 

 146, 168, 183, 184, 196, 210, 

 231, 251, 267, 275, 276, 279, 

 291,294.321,355, 359,367, 

 370, 373, 380, 390, 391, 392, 

 401. 4^0. See Western In- 

 terior. 



fire-seas, 746. 

 Intrusive rocks, 63. § 

 Invertebrates, 116.§ 



Age of, 139, 162. 



only animal life of Primor- 

 dial, 169. 

 Iowa, Carboniferous in, 291. 



("hazy in, 132. 



Cincinnati in, 197. 



Cretaceous in, 455. 



Hamilton in, 267. 



lead mines of, 197. 



Lower Silurian in, 210. 



Niagara in, 221. 



Quaternary in, 528, 529. 



rocks of, 377. 



Subcarboniferous in, 293, 

 294, 803. 



Trenton in, 196 



Upper Helderberg in, 256. 

 Ireland, Carboniferous in, 345, 

 346. 



Devonian in, 282. 



eruptions in, 525. 



in the Quaternary, 555, 572. 



Ireland, Jurassic in, 433. 



peat-beds of, 616. 



Permian in, 369. 



Silurian in, 244. 



Subcarboniferous in, 306. 

 Ireleth slates, 244. 

 Iridea edulis, ash of, 61. 

 Irish deer, 564, 565, 571. 

 Iron, 51, §365. 



abundance of, 810, 816. 



in plants, 364. 

 Iron Age, 574. 



Mountain, 151. 

 Iron ores, 59, § 74, § 703. 

 Iron ore, fossiiiferous, 231. 



in Archaean, 153. 



in Carboniferous, 293, 318. 



argillaceous, in Clinton 

 group, 220, 231. 

 Iron- bearing rocks character- 

 istic of Archaean, 151. 

 Ironstone, 318. 

 Isastrrea explanafca, 449. 



oblonga, 449. 



Stricklandi, 448. 

 Ischypterus, 417. 

 Ischyromvs, 511. 

 Isinglass. 53. § 

 Tsis nobilis, 60. § 

 Island-chains curves in, 30,* 



31* 32,* 34. 

 Islands, coral, 618. 



in rivers, 658. § 



oceanic, 14. 



parts of continents, 14. 

 Isle of Mull leaf -bed, 513. 

 Isocardia, 475. 

 Isocrymal chart, 41 § 

 Isoetes, 270. § 

 Isonema depressa, 274. 

 Isopods, 120 * 122 § 

 Isotelus gigas, 204. 

 Isothermal chart, 41. § 

 Isothermal lines, Cretaceous, 

 481. 



Tertiary, 526. 

 Isthmus of Darien, 669, 713. 

 Itabyrite, 72,§ 76. § 

 Itacolumvte, 71. § 

 Italy, Cretaceous in, 470. 



changes of level in Serapis, 

 584. 



in the Quaternary, 573. 

 lulus, 342. 



Ives, on the Colorado, 645.* 

 Ivory, fossil, 565. 



Jackson, C. T., on Bhode Isl- 

 and Carboniferous, 319. 

 Jackson group, 494. 

 Janassa bituminosa, 372. 

 Janira hemicvclica, 511. 

 Janthina, 243. 

 Japan, Tertiary in, 512. 

 Jasper, 53, § 71. § 

 Java, Tertiary in, 512. 

 Jelly-fish, 117. § 

 Jenzsch, G., analysis of phono- 



lvte, 77. 

 Jet, 62.§ 

 Joggins, Carboniferous at, 319, 



337. 

 Johnson, W. B., analyses of 



coal, 316. 

 Johnson, S. \V., formation of 



coal, 364. 

 Jointed structure, 88,§ 793,802, 



Jones, T. R., on Estheria, 416. 

 Judd, J. W.j 733. 

 Juglans, 459, 497, 498, 515- 



appressa, 498. 



acuminata, 498. 



denticulata, 499. 



Schimperi, 499. 

 Jukes, on Irish Devonian, 282. 

 Juniper us, 450. 

 Jura Mts., bowlders on, 533. 



Cretaceous in, 470. 



Jurassic in, 434. 

 Jurassic period, 431. 



Karnes, 548. 

 Kankakee Swamp, 557 

 Kanawha Salines, 321. 

 Kangaroo-rat, 44S. 

 Kansas, Carboniferous in, 291, 

 320. 

 chalk in, 455. 

 Cretaceous in, 456. 

 Permian in, 367. 

 Triassic in, 4'. / 3. 

 Kaolin, 68, 711. § 

 Kaskaskia limestone, 294. 

 Katahdin, height of, 530. 



bowlders on, 530. 

 Kelloway rock, 435. 

 Kendall group, 244. 

 Kent's Cave, 564, 576. 

 Kentucky, Cax-boniferous in, 

 291, 314, 321. 

 Hamilton in, 267. 

 in the Carboniferous, 354. 

 Quaternary in, 528. 

 Subcarboniferous in, 293, 



294, 304, 305. 

 terraces in, 548. 

 Tertiary in, 493. 

 Upper Helderberg in, 256. 

 Keokuk limestone, 294, 305, 



377, 378. 

 Kerr, on erosion, 651- 

 Keuper, 424, 429. 

 Keweenaw Point, copper of, 



185. 

 Kilauea, 726* 727, 729 * 737, 



733, 739, 744, 746. 

 Kimmeridge clay, 433. 

 Kimmeridgian group, 435. 

 Kinderhook group, 294, 395, 



377, 378. 

 King, A. T., on Carboniferous 



footprints, 343. 

 King & Rowney, on Eozoon, 



159. 

 King, C, on Triassic in Rocky 

 Mts., 406. 

 on Wahsatch and Uintah 

 Mts., 453, 791, 795, 820. 

 Kingdoms of nature, 1. 

 Kirkdale Cavern, 564. 

 Kitchen-middens, 562, 577. 

 Kittanning Coal-bed, 311. 

 Kjokken-moddings, 562, 577. 

 Knox group, 163, 379. 



sandstone, 163. 

 Koninckina, 171. § 

 Kossen beds, 425, 429. 

 Knorria, 283, 297, 307, 348. 

 Kraussia, 171, 174. 

 Kupferschiefer, 369. 

 Kupffer, on composition of 



Obolus, 61. 

 Kutorgina cingulata, 177,250. 

 Kyanite. See Cyanitb. 



in the Hamilton, 267. 



Labradioryte, 74 § 





